Portable electric lamp.



H, M: PETERS. v PORTABLE ELECTRSC LAMP. APPLICATION FILED JUL! 6, i916.

Pawltefl May 8,

HENRY M. PETERS, 13F CHICAGO, ILLINOIS.

PORTABLE ELECTRIC LAMP.

manner. I

Specification of Letters Patent.

Patented May 8, 191?.

Application filed July 6, 1916. Serial No. 107,844.

To all whom it may concern:

Be it known that l, HENRY M. PETERS, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements inPortable Electric Lamps;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to portable electric lamps, and has for an objectto provide a lamp having improved means for holding a shade thereon sothat shades of various types may be interchangeably employed uponthelamp base as'occasion may require.

A further object of the invention is to provide a lamp base and pivotedlamp holder or socket with improvedmeans for carrying a shade upon thepivoted member so that said shade may be removed and another shadereplaced without in any way disturbing the illuminating elementherein abulb.

l/Vith these and other objects in View the invention comprises certainnovel features of construction, combination and arrangement of parts aswill be hereinafter more fully described and claimed.

In the drawings:

I Figure 1 is a view of a conventional lamp base shown in elevation, anda conventional shade shown thereon in section.

Fig. 2 is 2--2 of Fig. 1.

Fig. 3 is a sectional view taken on line 33 of Fig. 1.

Like characters of reference designate corresponding parts throughoutthe several views.

The improved lamp which forms the subject-matter of this applicationcomprises a base or standard 10 of any usual and ordinary type, thedesign shownin the drawing being immaterial to the present invention. Tothe standard 10 an arm 11 is pivoted as at 2 to assume various anglesrelative to the standard 10 in the usual well-known manner. The arm 11carries a lamp socket 12 which in turn is provided with a lamp 13 of anya sectional view taken on line usual and ordinary shape herein shown asa bulb.

The arm 11 also carries plate 1 1 having guide members 15 formed thereonin any approved manner as by turning the edges of the plate 14 asindicated at 15, although it is to be understood that the forming of theguide 15 may be accomplished in any usual Well-known mechanical manner.

A shade 17 is provided having a slot indicated at 18 properlyproportioned to span the arm 11, and the upright edges of the slotengage the guides 15 while the end of the slot rests upon the arm 11 toprevent downward movement and the guides 15 prevent any lateral orlongltudinal movement of the shade.

The only requirement for the shade 17 is in the matter of the slot 18'being proportioned to properly fit and coact with the guides 15 and arm11, the remaining portions of the shade being cor. igured to correspondto the requirements or desires of the user.

It willsbe readily understood that the shade 17 is not retained upon thelamp structure by any fastening means whatever but only slidably engagedin the guides 15, and may be removed and replaced at will or anothershade substituted whose only similarity resides in the slot 18.

I claim 1. In a lamp, a standard, an arm pivoted thereon and carrying anilluminating element, a plate carried by the arm, guides formed upon theplate, and a shade proportioned to span the arm, removably engage.

the guides, and cover the illuminating element.

2. In a lamp the combination with a standard, of an arm pivoted theretoand carrying a plate, guide members formed upon the opposite edges ofthe plate, and a shade provided with a slot properlyproportioned to spanthe arm and with the edges of the slot engaging the guide members.

3. In a lamp, the combination with a standard, an arm pivotedtheretoand;carrying a socket adapted to receive a bulb, and a plate mounted onthe arm between said pivot and socket and having upright guides; Intestimony whereof I aflix my signature of a shade adapted to cover thesocket and in presence of two Witnesses. bulb and having in its rearwell an upright slot Whose lower end is open and Whose .HENRY PETERS 5upper end -isadapted to rest upon the arm Witnesses:

When the edges of the slot engage said EVELYN GREENE,

guides DANIEL R. FORBES.

